At today’s MMS session on the SLD Solution Accelerator they announced that the release of this new version for R2 will RTM at the same time as R2. The beta is available on Connect if you are looking at the RC of OpsMgr R2.
https://connect.microsoft.com/programdetails.aspx?ProgramDetailsID=2249
V1 used SRS but v2 uses WSS (the free version of [...]